For several months, a restaurant manager collected data on the number of people at a table (p) and the total bill, in dollars (d). she found that there is a positive linear association between p and d that is best modeled by the equation d = 15.7p + 2.0. what statement is true? the model predicts that the average total bill for a table is $15.70. the model predicts that for each additional 2 people at a table, the total bill increases by $15.70. the model predicts that the average bill for any table with 2 people is $15.70. the model predicts that for each additional person at a table, the total bill increases by $15.70.

"which statement is necessarily true if bd is an altitude to the hypotenuse of right ? abc? a.) ? adb? ? bdc b.) ? adb~? bdc c.) abbc=acbd d.) ? bac? ? bdc"

Which of the following represents a function? 50 !

Farmers know that driving heavy equipment on wet soil compresses the soil and injures future crops. here are data on the "penetrability" of the same type of soil at two levels of compression. penetrability is a measure of how much resistance plant roots will meet when they try to grow through the soil. compressed soil 2.85 2.66 3 2.82 2.76 2.81 2.78 3.08 2.94 2.86 3.08 2.82 2.78 2.98 3.00 2.78 2.96 2.90 3.18 3.16 intermediate soil 3.17 3.37 3.1 3.40 3.38 3.14 3.18 3.26 2.96 3.02 3.54 3.36 3.18 3.12 3.86 2.92 3.46 3.44 3.62 4.26 use the data, omitting the high outlier, to give a 95% confidence interval for the decrease in penetrability of compressed soil relative to intermediate soil. compute degrees of freedom using the conservative method. interval: to